Product Description: Waterproof and dustproof. (IP57 Compliant) Fast response speed makes it easy to measure pH The sensor is replaceable. It can last for more than one year every day. 2-point calibration allows for precise measurements. Includes pH calibration fluid (4.0 and 7.0) Suitable for both freshwater and saltwater. Directions: Please read the included instruction manual carefully before using.
Please read the included instruction manual carefully before using